Wells-Gardner Vector Monitor 6100 Faq And Guide Version
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Wells-Garnder Color Vector Monitor Guide Page 11 of 75 +-------+--------------------------------+-------------------------------+ |*R907 | 3.9 +/- 5%, 3 W | P329 HV unit PCB | | R907 | 2.2 +/- 5%, 2 W | P315 HV unit PCB | | R907 | 3.9, 3 W | TM-183 3rd printing Schematic | | R907 | 2.2, 2 W | TM-183 2nd printing Schematic | | R907 | < part is not referenced > | 19K6400 service man Schematic | | R907 | 2.2 +/- 5%, 2 W | TM-183 3rd printing Figure | | R907 | 2.2 +/- 5%, 2 W | TM-183 2nd printing Figure | | R907 | 3.9 +/- 5%, 3 W | TM-183 3rd printing Parts List| | R907 | 2.2 +/- 5%, 2 W | TM-183 2nd printing Parts List| | R907 | < part is not referenced > | 19K6400 service man Parts List| +-------+--------------------------------+-------------------------------+ |*R910 | 6.8K +/- 5%, 1/4 W | P329 HV unit PCB | | R910 | 12K +/- 5%, 1/4 W | P315 HV unit PCB | | R910 | 6.8K | TM-183 3rd printing Schematic | | R910 | 12K | TM-183 2nd printing Schematic | | R910 | 12K | 19K6400 service man Schematic | | R910 | < parts value is not shown > | TM-183 3rd printing Figure | | R910 | 12K +/- 5%, 1/4 W | TM-183 2nd printing Figure | | R910 | 6.8K +/- 5%, 1/4 W | TM-183 3rd printing Parts List| | R910 | 12K +/- 5%, 1/4 W | TM-183 2nd printing Parts List| | R910 | 12K +/- 5%, 1/4 W | 19K6400 service man Parts List| +-------+--------------------------------+-------------------------------+ |*R911 | 4.7K +/- 5%, 1/4 W | P329 HV unit PCB | | R911 | 6.8K +/- 5%, 1/4 W | P315 HV unit PCB | | R911 | 4.7K | TM-183 3rd printing Schematic | | R911 | 6.8K | TM-183 2nd printing Schematic | | R911 | 6.8K | 19K6400 service man Schematic | | R911 | < parts value is not shown > | TM-183 3rd printing Figure | | R911 | 6.8K | TM-183 2nd printing Figure | | R911 | 4.7K +/- 5%, 1/4 W | TM-183 3rd printing Parts List| | R911 | 6.8K +/- 5%, 1/4 W | TM-183 2nd printing Parts List| | R911 | 6.8K +/- 5%, 1/4 W | 19K6400 service man Parts List| +-------+--------------------------------+-------------------------------+ |*R926 | 2.2 +/- 5%, 3 W | P329 HV unit PCB | | R926 | 2.2 +/- 5%, 2 W | P315 HV unit PCB | | R926 | 2.2, 2 W | TM-183 3rd printing Schematic | | R926 | 2.2, 2 W | TM-183 2nd printing Schematic | | R926 | 2.2, 2 W | 19K6400 service man Schematic | | R926 | < parts value is not shown > | TM-183 3rd printing Figure | | R926 | 2.2, 2 W | TM-183 2nd printing Figure | | R926 | 2.2 +/- 5%, 2 W | TM-183 3rd printing Parts List| | R926 | 2.2 +/- 5%, 2 W | TM-183 2nd printing Parts List| | R926 | 2.2 +/- 5%, 2 W | 19K6400 service man Parts List| +-------+--------------------------------+-------------------------------+ The good part about the three basic monitor components: deflection board, neck board, and HV board is that they are all interchangeable as units and they are all connectorized. In other words, if you have one working monitor you can try the boards from your bad monitor (one at a time) even if the boards are not exactly the same. Also, the most often failing components are common to the different versions of the boards. If you have a vector monitor based game, it is really worth the effort and money to have a spare monitor handy (even if it is being used in another vector game) so that you can isolate exactly which board is bad when (not if) you have a failure.
Wells-Garnder Color Vector Monitor Guide Page 12 of 75 If you feel uncomfortable about poking around inside a running game cabinet, or you cannot reach certain areas of the monitor, there is a simple solution. Make a monitor ‘extender’ cable that will plug into the game harness. This way, you can have the vector monitor under test located several feet from the game and potentially in a better/safer working environment. NOTE: There is one small exception to the universal compatibility rule for the neck board PCB. The P328 version uses a third (purple) wire running from the innermost (normally unused) pin of connector J501 to pin 8 of J900 on the HV unit. Without this wire, the new brightness control on P328 is disabled. Also, and this is VERY important, if you are using a P328 PCB on a P315 wiring harness (or vice-versa), you have to turn the J501 connector upside down. Do not worry too much about remembering the orientation because the connectors pins are gapped differently so it will only fit onto each PCB one way (the right way) without severely bending the pins on the neck board PCB (i.e., it is idiot-proof). This means that for testing purposes, you can swap boards and everything will be fine, but if you want the functionality that the P328 potentiometer provides, you must remove the associated wiring harness that connects to J501 along with the board (or else add a new wire to the existing harness on the destination monitor). Without this wire, a P328 will behave exactly like a P315 and the brightness control pot will do nothing.
Wells-Garnder Color Vector Monitor Guide Page 13 of 75 INSTALLING A CAP KIT If you do not have a manual for this monitor, get a copy, as it does a good job of explaining how each section works and also how to adjust it. For those who do not like reading manuals, or who do not feel like locating local sources for specific parts or who do not want to hunt through a huge catalog to put together part numbers for an order, you can probably order everything you need (except for the upgrade parts and the extra capacitor for P329 versions of the HV unit) bundled together in one package from Zanen Electronics. I suggest you order a couple of these to keep as spares since you never know when you might need to do a rush repair job and the price simply cannot be beat. Call Zanen at +1.806.793.6337 and ask for get well kit #206 which at last count had thirty pieces including all the capacitors that go bad, six replacement chassis transistors, several of the smaller transistors (and their corresponding resistors), several diodes (including ZD902), and somewhat sparse documentation on how to replace the parts. Ordering a kit from Zanen also entitles you to FREE technical assistance and they seem to be very experienced and knowledgeable. As of January 2002, the price for this kit was $15, which is probably cheaper than any deal you could put together yourself. A Cap Kit is a good way to go if you do not feel like doing any testing to find out what exactly is bad. If you replace all the parts included in this kit, you may be throwing out a lot of parts that still work OK (but which may be on their last legs, anyway), but in most cases you will have a working monitor when you are done. If you replace all these parts and the monitor still does not work, then go through the flowchart shown later in this document. It is quite likely that you have a bad HV transformer and you will have a heck of a time locating a replacement. Be aware that some of the parts that Zanen will send you are from the original specifications and should not be used, as this spec is known to be deficient. Consult the section below about how to upgrade the deflection board and switch out the indicated parts for the upgraded replacements. Zanen Cap Kit #206 Installation Instructions Includes Updated Instructions by [email protected] (03/12/99) Zanen Electronics 5023 52nd Street Lubbock TX 79414 806-793-6337 Fax: 806-793-9136 Bob Roberts also sells cap kits. Bob provides a complete ‘updated’ kit for the WG6100 Vector Monitor. [email protected] http://www.therealbobroberts.com
Wells-Garnder Color Vector Monitor Guide Page 14 of 75 Zanens Standard Instructions: This monitor repair kit is designed for the Wells-Gardner 19K6100 X-Y color monitor, as used in Tempest, Space Duel, and other Atari color X-Y games. Be sure to install all the parts on the monitor even though many of the original parts seem to be working fine. Age, humidity, and temperature will cause the value of electrolytic capacitors to change. Also the other semi-conductors included fail often. Install them all. Each capacitor is polarized and should only be inserted in the proper direction. Watch the polarity markings on each capacitor. On the topside of the monitor board where each capacitor is located is a circle with a plus sign next to one of the holes. The plus sign indicates where the positive (+) lead of each capacitor is to be installed. Important: It is possible for a failure on the game logic board to cause the monitor to fail. There is a simple test to find out if the game board caused the monitor to fail. To perform the test you will need a voltmeter. Set the voltmeter on the DC voltage scale and measure the voltage on the lead of R600 and R700 (fuses) of the deflection board. These are connected to the plug with wire colors yellow (R600) and orange (R700). The correct voltage should be in the +0.5 to -0.5 volt range (basically zero volts). The voltage will fluctuate because of changing deflection signals. If the measured voltage is between 5 and 15 volts (positive or negative), then check the X and Y amplifiers on the GAME board. Also check for broken potentiometers on the game board. Important: It is very important to resolder all the molex connectors soldered to the monitor circuit boards. Plugging and unplugging these connectors can crack the solder joints. End of original Zanen installation instructions
Wells-Garnder Color Vector Monitor Guide Page 15 of 75
THE REAL INSTALLATION/UPGRADE STORY
When I ordered the Zanen #206 cap kit, I felt the instructions were rather brief and disorganized.
There are over 30 parts to install on three PCBs! Which ones go where? These instructions
should help correct that.
Also note the Zanen cap kit #206 is based on specs for the original revision of the Wells-Gardner
19K6100 X-Y Color monitor. There have been three revisions of this monitor, to address some
of its shortcomings. Although these upgrade parts are not included in the Zanen cap kit, I would
highly recommend you install the upgrade parts while the monitor is apart. You will have to buy
some additional parts, which are listed at the end of this section. It is unknown why Zanen will
not assemble a ‘proper’ cap kit for vector collectors. Bob Roberts offers a ‘complete’ cap kit for
the Wells-Gardner 6100 vector monitor.
If your WG6100 does not work, installing a Zanen cap kit #206 can solve many problems
without you knowing exactly what is wrong. For most people not familiar with this monitor, it is
an excellent starting point to fix your monitor. And at $15 per kit, you cannot purchase these
parts that cheaply anywhere else.
To finalize your WG6100 repair, I would recommend installing a LV2000 low voltage board. At
$35 each, this will also save you considerable time, trouble and money in the end. Between the
Zanen kit #206, the upgrades described here, and the LV2000, you should end up with a working
(!) and bullet proof Wells-Gardner 19K6100 X-Y color monitor. Even if your monitor is
completely dead, installing these two kits and doing the upgrades should give you a working
monitor (without you knowing anything about fixing monitors too!). For more information on
this upgrade, see http://www.diac.com/~jeffh/lv2000/.
Key:
· Q = Transistor
· R = Resistor
· C = Capacitor (all polarized electrolytic)
· F = Fuse
· D = Diode
· ZD = Zener Diode
Note that the capacitors come in two types:
_____
_____ | |
--| |-- radial-lead | |
~~~~~ +---+
axial-lead | |
Wells-Garnder Color Vector Monitor Guide Page 16 of 75 CHASSIS TRANSISTORS All the monitor chassis transistors are mounted in a socket with two Phillips head machine screws. No soldering necessary; just unscrew the old one and replace. You cannot put these chassis transistors in backwards; the leads are offset so they will only fit into the chassis and screw down in one direction. If you put the transistors in backwards, the screw holes will not line up. Make sure you install a new clear plastic Mica insulator between the transistor and the metal monitor chassis. New ones are not included in the Zanen kit! If you have some white heat sink grease, put a light coating on both sides of the Mica insulator. WG6100 Monitor Chassis Parts Location Part Number Notes Q102 2N3716 transistor Power Q103 2N3792 transistor Power Q605 2N3716 transistor Deflection Q606 2N3792 transistor Deflection Q705 2N3716 transistor Deflection Q706 2N3792 transistor Deflection Important: after replacing the above transistors, use your meter set to Ohms and check the continuity between the metal monitor chassis and the metal case of the above transistors. If there is continuity, you need to either replace the thin clear plastic Mica insulator that goes between the transistor and the monitor chassis, or readjust the transistor so the pins are not in contact with the monitor chassis. There should be NO continuity! If there is continuity, you will usually blow R100 or R101 (assuming you do not have an LV2000 installed). You will probably also take out the 2N3716 or 2N3792 transistors involved, and they are not cheap!
Wells-Garnder Color Vector Monitor Guide Page 17 of 75 DEFLECTION BOARD The Deflection board is the main PCB mounted right behind and below the monitor tube. Zanen WG6100 Deflection PCB Parts Location Part Number Upgrade? Notes R100 15 ohm ½ watt resistor Brn/Grn/Blk R101 15 ohm ½ watt resistor Brn/Grn/Blk R102 330 ohm ¼ watt resistor Org/Org/Brn R103 330 ohm ¼ watt resistor Org/Org/Brn D104 1N4148 diode D105 1N4148 diode ZD100 1N4750 diode 27v Some boards mislabel this diode as R104. ZD101 1N4750 diode 27v Some boards mislabel this diode as R105. Q100 MPSA06 (NTE287) Q101 MPSA56 (NTE159) Yes Upgrade to NTE50 if not using LV2000 Note: All the above parts are located in the low voltage section of the Deflection board. Important: if you are installing an LV2000 (highly recommended), you do not need to install ANY of the above parts. They will all be removed and replaced by the LV2000 installation.
Wells-Garnder Color Vector Monitor Guide Page 18 of 75 DEFLECTION BOARD (cont.) The following Deflection board parts should also be replaced, and are not included in the Zanen kit, and are not replaced by the LV2000. I would recommend installing these upgraded parts. These will bring your deflection board to the last revision created by Wells-Gardner. NON-Zanen Deflection PCB Upgrade Parts Location Part Number Upgrade Notes Q604 NTE49 transistor Yes Replaces MPSU07 (NTE188) Q704 NTE49 transistor Yes Replaces MPSU07 (NTE188) R106 22 ohm 3 watt resistor Yes Replaces 2 watt versions R701 1.3k ohm 5 watt resistor Yes Replaces 1/4 watt versions R812* 5.6k ohm ¼ watt resistor Yes Replaces 10k ohm versions R813* 5.6k ohm ¼ watt resistor Yes Replaces 10k ohm versions C100 4700 uF 50v axial capacitor Not an upgrade, but a good idea to replace C101 4700 uF 50v axial capacitor Not an upgrade, but a good idea to replace C800 1 uF 50v axial capacitor Yes Replaces 0.47 uF 35v cap C801 1 uF 50v axial capacitor Yes Replaces 0.47 uF 35v cap C802 1 uF 50v axial capacitor Yes Replaces 0.47 uF 35v cap C803 1 uF 50v axial capacitor Yes Replaces 0.47 uF 35v cap D100 1N4007 (NTE125) diode Yes Replaces 5A2 (1N4005/NTE116) D101 1N4007 (NTE125) diode Yes Replaces 5A2 (1N4005/NTE116) D102 1N4007 (NTE125) diode Yes Replaces 5A2 (1N4005/NTE116) D103 1N4007 (NTE125) diode Yes Replaces 5A2 (1N4005/NTE116) F100 6.25 amp Slo-Blo Fuse Yes Replaces 5 amp fuse F101 6.25 amp Slo-Blo Fuse Yes Replaces 5 amp fuse * these parts may be optional for your monitor. Deflection Board Notes. R812 and R813 are only used in the 2nd (P327) and 3rd (P339) revisions of the Deflection board. If you have the 1st revision (P314), these parts will not be present. Although not included in the Zanen kit, you should check the Deflection board capacitors at C100 and C101 (both are 4700 uF, 50v). Also test the 5A2 (1N4005 or NTE116) rectifier diodes at D100, D101, D102, D103. These rectifiers are 600v, 1-amp components. You can upgrade them to 5A8 (1N4007 or NTE125) diodes that spec at 1,000v, 2.5-amps.
Wells-Garnder Color Vector Monitor Guide Page 19 of 75 DEFLECTION BOARD (cont.) To test the capacitors you will need a meter that has this option. Most do not, and the ones that do often will not go up to 4,700 mfd. If in doubt, just replace them, as they are relatively inexpensive. To test diodes, you must remove one lead of the diode from the board. Then put your meter on the diode setting. Put your test leads on the diode and note reading. Reverse the leads and test again. In one direction you should get a null reading (no activity on the meter). In the other direction you should get between 0.4 and 0.8 volts. If in doubt, replace the diode. They are cheap! Note that the new 1N4007 diodes used at locations D100 to D103 will be considerably smaller than the 15-year-old original diodes. Do not worry about this; new products are smaller, yet more durable.
Wells-Garnder Color Vector Monitor Guide Page 20 of 75 HIGH VOLTAGE The High Voltage PCB (in the metal cage with the flyback transformer) had several revisions too. I would recommend doing the upgrade parts here as well. This brings your HV PCB to the latest revision. Zanen High Voltage (caged) PCB Parts Location Part Number Upgrade? Notes C901 220 uF 50v Low ESR axial capacitor Yes Upgrade to 220 uF 50v; 100 uF is included with Zanen kit C902 220 uF 50v Low ESR axial capacitor Yes Upgrade to 220 uF 50v; 100 uF is included with Zanen kit C905 33 uF 160v radial capacitor C909 22 uF 50v axial capacitor C910 10 uF 350v axial capacitor C914 47 uF 50v axial capacitor ZD902 Z150B zener diode 150v install at ZD902, not D902! Q901 MPSA06 (NTE287) transistor Q902 MPSA06 (NTE287) transistor Q903 2N3904 transistor R901 2.2 ohm 2 watt resistor Yes Upgrade to 3.9 ohm @ 3 watt; 2.2 ohm is included in the Zanen kit R907 2.2 ohm 2 watt resistor Yes Upgrade to 3.9 ohm @ 3 watt; 2.2 ohm is included in the Zanen kit R918 25k Pot Do not install unless necessary: pre- adjust to 5.5k ohms on the upper 2 contacts NON-Zanen High Voltage (caged) PCB Parts Location Part Number Upgrade? Notes R903 3.9 ohm ½ watt resistor No, but… replace anyway R910 6.8k ohm ¼ watt resistor Yes replaces 12k ohm original R911 4.7k ohm ¼ watt resistor Yes replaces 6.8k ohm original R926 2.2 ohm 3 watt resistor Yes replaces 2 watt original